643 KC – Indoor Training Facility 


643 KC is an Indoor Training Facility in Blue Springs MO, a suburb roughly 20 miles east of Downtown KC. 643 is owned and operated by Mick Simpson, who played for Longview CC and the University of Central Missouri, and has coached and taught players of all ages and skill levels. Micks approach is  that he is “truly interested in each players development on and off the field… I believe in teaching the game in a way that translates to teaching life… when a young person learns to hit their ceiling in a sport they love then they will learn to reach their full potential in future endeavors in life!!”


643 KC is a membership facility and has a full gym with player specific training plans available, 3-mound bullpen set up with plates adjusting to 50 54 & 60 ft., a full team area that can be one large area or divided into 3 separate small cages, 2 outdoor batting cages, 3-mound outdoor bullpen, and 2 full-size baseball/softball fields!! This place has something for everyone and is a great place for any player to call home!! Mick and his staff will have your player in the best shape of his life, working hard at the game he loves!! 

643 Member Programs 

Athletic Foundation Plan

  • 4 week cycles
  • Includes Player Specific weekly workouts
  • Player Performance Tracker(online progress tracking)
  • Challenged by other players in the Program

Complete Player Plan

  • 8 week cycles
  • Includes Athletic Foundation, player skill work, 1 Lesson per week 
  • Player skill work areas are Hitting, Pitching(ARM Training), Fielding, Catching
  • Discount available Group and Team plans are available 

Jason Beeding is an instructor at 643 KC and has the ARM(All Reps Matter) Pitching Program.The ARM – All Reps Matter pitching development and training program was born out of 30 years of working knowledge by Coach Jason Beeding… With injury prevention in mind, the core foundation is
ARM care | ARM strength | ARM mechanics | ARM mobility. Building a suitable pitching strong hold in order to maximize gains as a rotational athlete is a must for success. We found that many pitching athletes were simply not focusing enough in the correct areas of development in order to promote a long lasting career as a pitcher. Like wise, a heavy emphasis on velocity gains were placed in front of care and stability which was forcing unnecessary arm issues and injury.
Once the athlete trains in a suitable manner involving their entire body rather than just their arm or shoulder, velocity gains will be maximized. The program is perfect for all ages and covers everything pitching related


643 KC is a great facility for any athlete to train!! They are professional, experienced, motivating Teachers and Trainers that welcome anyone with the desire to get better!! In Life and in Baseball!!

You can find 643 KC online at www.643kc.com or on Facebook at https://www.facebook.com/armpitching/ 

You can also go to youthmetrobaseball.com to find other Indoor Training Facilities in your area